The Mini-Circuits ZHL-5W-2G-S+ is a high-power RF amplifier module delivering 5 W output across the 800 MHz to 2 GHz band, with usable performance extending to 700–2200 MHz. This 50 Ω amplifier combines high gain (45 dB typical, 40–50 dB range) with controlled flatness (±2.1 dB) and low noise (8 dB typical), making it suitable for demanding RF systems requiring linear amplification and signal integrity. The unit produces +36 to +37 dBm at 1 dB compression and saturates at +37 to +38 dBm, with an output IP3 of +44 dBm typical. Input and output VSWR are 1.70:1 and 1.50:1 respectively.
Operates from a 22–28 V supply (24 V nominal) drawing 1.7 A typical current, with 3 A startup capacity required. The module houses integrated power regulation to maintain stable performance across the voltage range. Input/output interfaces use SMA female connectors. Housed in aluminum alloy, the unit weighs 8.35 grams without external heat sinking. Thermal management is critical: users must provide an external heatsink maintaining maximum base-plate temperature of 87 °C, with recommended thermal resistance not exceeding 0.46 °C/W. The amplifier is specified for open and short-circuit load protection under full continuous-wave output power. RoHS compliant.
Technical Specifications
• Frequency Range: 800 MHz to 2 GHz (usable 700 to 2200 MHz)
• Gain: 40–50 dB range; 45 dB typical
• Gain Flatness: ±2.1 dB
• Noise Figure: 8 dB typical
• P1dB (Output at 1 dB Compression): +36 to +37 dBm (5.01–6.31 W)
• Saturated Output Power (3 dB Compression): +37 to +38 dBm
• Output IP3: +44 dBm typical
• Input Power: 1 dBm typical
• Input VSWR: 1.70:1 typical
• Output VSWR: 1.50:1 typical
• Supply Voltage: 22–28 V
• Supply Current: 1.7 A typical; 3 A startup requirement
• Characteristic Impedance: 50 Ω
• Connectors: SMA female input/output
• Weight: 8.35 grams (without heatsink)
• Thermal Requirement: Maximum base-plate temperature 87 °C; external heatsink ≤0.46 °C/W
– Key Features
• Internal power regulator maintains constant current across full supply voltage range
• Load-fault tolerant—survives open and short-circuit conditions at full CW power
• Aluminum construction with external heatsink interface for thermal performance
• RoHS compliant
– Typical Applications
• PCN/GSM/ISM band amplification
• Test and measurement systems requiring mid-range RF gain
• Signal chain modules needing 5 W output capability
– Compatibility & Integration
50 Ω impedance matched systems; SMA connectors; 22–28 V regulated power supply required.

















